package javass;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

public class LoginServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public LoginServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		HttpSession s=null;
		request.setCharacterEncoding("UTF8");
       String name=request.getParameter("name");
       String pwd=request.getParameter("pwd");
	/**
	 * 省略了调用业务的方法
	 */
       Userinfo u=new Userinfo();
       u.setUsername(name);
       u.setPassword(pwd);
       Fangfa f=new Fangfa();
       String result;
	try {
		result = f.login(u);
		request.setAttribute("result", result);
		if(result.equals("1")){
			request.getRequestDispatcher("./tran2.jsp").forward(request, response);
		}else{
			request.getRequestDispatcher("./tran3.jsp").forward(request, response);
		}
	    
	} catch (ClassNotFoundException | SQLException e) {
		e.printStackTrace();
	}
      
       
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		this.doGet(request, response);
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occurs
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}
